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Explain the terms potential barrier for...

Explain the terms potential barrier for a junction diode.

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Potential barrier: When a p-n junction is formed, a fictitious battery gets developed across the junction, with positive pole connected to N-region and negative pole to P-region of p-n junction. This fictitious battery acts as a potential barrier as it oppose the migration of majority carrier across the p-n junction. The value of this potential barrier is 0.7 volt for silicon semiconductor diode and 0.3 volt for germanium semiconductor diode.
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BETTER CHOICE PUBLICATION-SEMI CONDUCTOR DEVICES-Short Answer Type Questions
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  18. In a transistor, base is always thin and lightly doped. (True/false)

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  19. The resistance of a p-n junction is low, when forward biased and is hi...

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  20. Explain the following A transistor is a temperature - senstive device.

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